What the vulnerability does
01Description
The Buzz Comments plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Custom Buzz Avatar' (buzz_comments_avatar_image) setting in all versions up to, and including, 0.9.4. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the plugin settings page.
Explanation of Vulnerability in Simple Terms
02Summary
Buzz Comments versions 0.9.4 and earlier contain a cross-site scripting (XSS) vulnerability that allows high-privilege users to inject malicious scripts affecting other users or the site. The vulnerability requires high attack complexity and administrative access to exploit. Impact is limited to low-level data exposure and site integrity compromise.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers or affect site functionality.
Potential impact on your site
04Site Impact
An admin with malicious intent could inject scripts affecting other users or site behavior; low risk if admins are trusted.
Conditions required to exploit
05Prerequisites
Attacker must have high-level administrative privileges and the attack has high technical complexity.
Key dates
06Disclosure timeline
April 22, 2026
CVE published
April 22, 2026
Record updated
